File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Adsorption behavior of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) on boehmite

TitleAdsorption behavior of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) on boehmite
Authors
KeywordsBoehmite
Electrostatic interaction
Ligand exchange
Pfoa
Pfos
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2012, v. 89 n. 8, p. 1009-1014 How to Cite?
AbstractUnderstanding the interaction of perfluorochemicals, persistent pollutants with known human health effects, with mineral compounds in surface water and groundwater environments is essential to determining their fate and transport. Kinetic experiments showed that adsorption equilibrium can be achieved within 48h and the boehmite (AlOOH) surface is receptive to perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) adsorption. The adsorption isotherms estimated the maximum adsorption capacities of PFOS and PFOA on boehmite as 0.877μgm -2 and 0.633μgm -2, respectively. Compared to the adsorption capacity on γ-alumina, the abundant hydroxyl groups on boehmite surfaces resulted in the 2-3 times higher adsorption of PFOS and PFOA. Increasing solution pH led to a moderate decrease in PFOS and PFOA adsorption, owing to an increase in ligand exchange reactions and the decrease of electrostatic interactions. The presence of NaCl and CaCl 2 in solution demonstrated negative effects for PFOS and PFOA adsorption on boehmite surfaces, with potential mechanisms being electrical double layer compression, competitive adsorption of chloride, and the Ca 2+ bridging effect between perfluorochemicals. © 2012 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/159460
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Fen_US
dc.contributor.authorLiu, Cen_US
dc.contributor.authorShih, Ken_US
dc.date.accessioned2012-08-16T05:50:01Z-
dc.date.available2012-08-16T05:50:01Z-
dc.date.issued2012en_US
dc.identifier.citationChemosphere, 2012, v. 89 n. 8, p. 1009-1014en_US
dc.identifier.issn0045-6535-
dc.identifier.urihttp://hdl.handle.net/10722/159460-
dc.description.abstractUnderstanding the interaction of perfluorochemicals, persistent pollutants with known human health effects, with mineral compounds in surface water and groundwater environments is essential to determining their fate and transport. Kinetic experiments showed that adsorption equilibrium can be achieved within 48h and the boehmite (AlOOH) surface is receptive to perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) adsorption. The adsorption isotherms estimated the maximum adsorption capacities of PFOS and PFOA on boehmite as 0.877μgm -2 and 0.633μgm -2, respectively. Compared to the adsorption capacity on γ-alumina, the abundant hydroxyl groups on boehmite surfaces resulted in the 2-3 times higher adsorption of PFOS and PFOA. Increasing solution pH led to a moderate decrease in PFOS and PFOA adsorption, owing to an increase in ligand exchange reactions and the decrease of electrostatic interactions. The presence of NaCl and CaCl 2 in solution demonstrated negative effects for PFOS and PFOA adsorption on boehmite surfaces, with potential mechanisms being electrical double layer compression, competitive adsorption of chloride, and the Ca 2+ bridging effect between perfluorochemicals. © 2012 Elsevier Ltd.-
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere-
dc.relation.ispartofChemosphereen_US
dc.subjectBoehmite-
dc.subjectElectrostatic interaction-
dc.subjectLigand exchange-
dc.subjectPfoa-
dc.subjectPfos-
dc.titleAdsorption behavior of perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) on boehmiteen_US
dc.typeArticleen_US
dc.identifier.emailLiu, C: cecsliu@hku.hken_US
dc.identifier.emailShih, K: kshih@hku.hken_US
dc.identifier.authorityShih, K=rp00167en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.chemosphere.2012.06.071-
dc.identifier.pmid22897837-
dc.identifier.scopuseid_2-s2.0-84865336278-
dc.identifier.hkuros205549en_US
dc.identifier.volume89-
dc.identifier.issue8-
dc.identifier.spage1009-
dc.identifier.epage1014-
dc.identifier.isiWOS:000308844800015-
dc.publisher.placeUnited Kingdom-
dc.identifier.citeulike11256184-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats